Best Doctors in the World

Dr. Mehmet Halis Cerci is an orthopedics and traumatology specialist at Memorial Şişli Hospital in Istanbul. He gained significant experience during his specialized training at the Gülhane Military Medical Academy. Dr. Cerci served as a medical officer for the Turkish Naval Forces Command before entering private practice. He treats a variety of musculoskeletal conditions and traumatic injuries.

• Practices at the JCI-accredited Memorial Şişli Hospital.
• Completed residency training at the Gülhane Military Medical Academy.
• Served as a medical officer in the Turkish Naval Forces.
• Expertise in general orthopedics and traumatology.

Dr. Turker Sahiner is a neurologist at Memorial Şişli Hospital in Istanbul. He is the founding president of the Alzheimer's Association Denizli Branch. Dr. Sahiner specializes in treating Alzheimer's disease and epilepsy. He works at the first hospital in Turkey to earn JCI accreditation.

• Member of the International Society to Advance Alzheimer’s Research and Treatment.
• Holds membership in the Society for Neuroscience.
• Completed neurology specialization training at Ondokuz Mayis University.
• Member of the Turkish Brain Research and Neuroscience Association.

Dr. Gokhan Ertas is a Professor of Cardiology at Memorial Şişli Hospital in Istanbul. He has published 52 articles in international peer-reviewed journals. Dr. Ertas treats complex conditions like atrial fibrillation, coronary artery disease, and heart valve disorders. He practices at a JCI-accredited facility known for its high success rates in cardiovascular care.

• Member of the European Society of Cardiology and Turkish Society of Cardiology.
• Performs heart valve replacement and coronary stenting.
• Completed a research fellowship at the Thorax Center in the Netherlands.
• Contributed to three medical books on cardiovascular medicine.

Dr. Rouzbeh Fazeli is a periodontology specialist at Nifa Dent International in Izmir. He focuses on minimally invasive implantology and complex gum treatments. Dr. Fazeli earned his degree from Ege University, one of Turkey’s most respected medical institutions. He provides dental care in English, Persian, and Azerbaijani.

• Performs All-on-4, All-on-6, and flapless dental implant surgeries.
• Specializes in sinus lifting, bone grafting, and gingival recession plastic surgery.
• Uses laser dentistry and 3D imaging for precise diagnostics and treatment.
• Practices at Nifa Dent, a center holding the International Health Tourism Authorization Certificate.

Dr. Teoman Akcay is a gastroenterologist at Memorial Ataşehir Hospital in Istanbul. He specializes in digestive disorders, endoscopy, and liver research. Dr. Akcay completed his specialty training at Dokuz Eylül University. He treats patients at a clinic in the JCI-accredited Memorial Healthcare Group.

• Member of the Turkish Gastroenterology Association.
• Active member of the Turkish Liver Research Association.
• Sits on the Turkish Endoscopy Association board.
• Published numerous scientific articles in national and international medical journals.

The doctor is a highly experienced Ear, Nose, and Throat (ENT) specialist with an extensive clinical background in major medical institutions. Currently practicing at Memorial Sisli Hospital, the doctor has previously served at Service Hospital and Bakırköy Dr. Sadi Konuk Training and Research Hospital, accumulating years of expertise in diagnosing and treating complex ENT conditions.

In addition to domestic clinical experience, the doctor completed an observership at the University of Arkansas for Medical Sciences in the United States, gaining international exposure to advanced ENT practices and surgical techniques. The doctor maintains a strong focus on clinical excellence and evidence-based patient care within the field of otolaryngology.

Dr. Cemile Dilek Uysal is a dermatologist at Hisar Hospital Intercontinental in Istanbul. She graduated with honors from Akdeniz University. Dr. Uysal treats various skin conditions, including acne, eczema, and psoriasis. She also manages parasitic diseases such as scabies and hair disorders like alopecia.

• Specializes in medication therapy for acne and viral or bacterial skin diseases.
• Treats fungal infections and complex cases of chronic pruritus or itching.
• Works at Hisar Hospital, a JCI-accredited facility meeting high safety standards.
• Provides care at a center serving over 500,000 international patients annually.

The doctor is an experienced Associate Professor of General Surgery with a distinguished career spanning over a decade in leading medical institutions. Currently practicing at Memorial Şişli Hospital, the doctor has held significant academic and clinical positions at Istanbul Florence Nightingale Hospital, Science University, and Acibadem University Atakent Hospital.

With a strong background in general surgery, the doctor has progressed from a specialist role to an Associate Professor, demonstrating a commitment to clinical excellence and medical education. The doctor's career reflects extensive experience in high-volume hospital settings, focusing on surgical patient care and professional development within the field of general surgery.

Dr. Mahir Mahirogullari is an orthopedic surgeon at Memorial Şişli Hospital in Istanbul. He completed a fellowship in orthopedics and traumatology at Wake Forest University in the USA. Dr. Mahirogullari specializes in treating complex musculoskeletal injuries and joint conditions like arthrosis.

• Earned the Turkish Association of Orthopedics and Traumatology Best Verbal Declaration Award.
• Winner of multiple professional honors, including the Derviş Manizade and Altındağ Branch prizes.
• Member of the International Society of Arthroscopy Knee Surgery and Orthopaedic Sport Medicine.
• Works at Memorial Şişli, the first hospital in Turkey to receive JCI accreditation.

Dr. Fatima Bayramova is an endocrinologist at Lokman Hekim Istanbul Hospital. She specialists in diabetes mellitus, thyroid diseases, and obesity. Dr. Bayramova completed residency training at both Hacettepe University and Istanbul University. She holds expertise in adrenal and pituitary disorders and osteoporosis management.

• Member of the Turkish Society of Endocrinology and Metabolism.
• Researches correlations between bone marrow aspiration and biopsy results.
• Treats patients at JCI-accredited Lokman Hekim Istanbul Hospital.
• Fluent in medical services for both adults and children.

The doctor is a graduate of the Ege University Faculty of Dentistry, where a master's degree was successfully completed. With a professional focus on aesthetic dentistry and pulp health, the doctor has actively enhanced clinical expertise by participating in various international congresses throughout a dedicated career.

Currently, the doctor provides comprehensive oral and dental healthcare services at the WestDent Private Oral and Dental Health Polyclinic.

Dr. Nihal Durmus Kocaaslan is a plastic surgeon at Lokman Hekim Istanbul Hospital. She is a Fellow of the American College of Surgeons (FACS). Dr. Kocaaslan holds both national and European board certifications (EBOPRAS). She treats congenital anomalies and performs complex breast and jaw reconstructions.

• Earned a PhD in Forensic Medicine and serves as a Ministry of Justice expert.
• Completed microsurgery training at RWTH Aachen and cleft care at Seattle Children’s.
• Specializes in orthognathic surgery and maxillofacial procedures.
• Maintains active membership in ISAPS and the AO Craniofacial Surgery Foundation.

Specialist Dr. Nurana Güller earned her medical degree and completed nephrology training at the Cerrahpaşa (Çapa) Faculty of Medicine, Istanbul University, a major academic center in Türkiye. She trained in a high-volume tertiary referral center. She contributed to multidisciplinary care for acute and chronic kidney diseases.

Her practice focuses on early CKD detection. She aims to slow progression and prevent complications. She has extensive experience in AKI management. She provides stage-specific treatment and long-term follow-up for chronic kidney failure. Her interests include hypertension, diabetic nephropathy, glomerulonephritis, UTIs, proteinuria, kidney stones, cystic diseases, dialysis, and transplantation.

Dr. Güller practices at İAÜ Medical Park. She follows evidence-based, ethical, and patient-safety principles.

The doctor is a highly experienced Neurology Specialist with an extensive clinical background spanning over 15 years in major medical institutions across Türkiye. Throughout a distinguished career, the doctor has provided expert neurological care at several prominent healthcare facilities, including Memorial Sisli Hospital and the Private Sisli Florence Nightingale Hospital.

The doctor's professional journey includes significant clinical service at Sakarya Yenikent State Hospital and Ankara Occupational Diseases Hospital. With a consistent focus on neurology, the doctor has developed deep expertise in diagnosing and managing complex neurological conditions, maintaining a commitment to high-quality patient care and clinical excellence.

Dr. Seniz Ustundag is a certified orthodontics specialist at the JCI-accredited Hisar Hospital Intercontinental. She earned her doctorate from Marmara University with a focus on temporomandibular disorders. Dr. Ustundag treats complex dental alignment issues in children, teens, and adults.

• Performs orthodontic preparation for patients undergoing orthognathic surgery.
• Uses clear aligner systems including Invisalign First, Teen, and MA.
• Specially trained in lingual therapy and Roth techniques.
• Treats congenital conditions such as cleft lip and palate.

Dr. Tumay Ipekci is a urology specialist and professor at Memorial Şişli Hospital in Istanbul. He has authored over 60 articles in peer-reviewed medical journals. Dr. Ipekci serves on the editorial boards of Urology Research and Practice and the Mediterranean Medical Journal. He is a faculty member at Bahçeşehir University. His practice is based at a JCI-accredited hospital known for organ transplantation and robotic surgery.

• Member of the European Association of Urology (EAU) since 2006.
• Presented 36 scientific papers at national and international medical congresses.
• Active member of the Endourology Society and the Turkish Urological Association.
• Former associate professor at Başkent University Department of Urology.

Dr. Ilknur Erenler Bayraktar is a general surgeon at Memorial Şişli Hospital in Istanbul. She focuses on colorectal surgery, gastrointestinal oncology, and laparoscopic techniques. Dr. Bayraktar earned her medical degree and residency at Istanbul University Cerrahpaşa. She practiced at the Cleveland Clinic Digestive Disease Institute in the USA.

• Holds European Board of Coloproctology (EBSQ-C) specialist certification.
• Completed clinical training at Klinikum rechts der Isar in Germany.
• Specializes in minimally invasive and robotic surgical methods.
• Member of the European Society of Coloproctology and the European Surgical Society of Oncology.

Dr. Hakan Hanimoglu is a neurosurgeon at Memorial Şişli Hospital in Istanbul. He specializes in brain and nerve surgery across major Turkish medical institutions. Dr. Hanimoglu works within a surgical department known for robotic and genetics-based procedures. He practices at the first hospital in Turkey to earn JCI accreditation for safety.

• Serves as a neurosurgery specialist at Memorial Atasehir Hospital.
• Holds a clinical role at Istanbul Biruni University.
• Practiced at Istanbul University Cerrahpaşa Medical Faculty.
• Treats patients at a facility with a 90% organ transplant success rate.